Razi’s Viper — Fact Sheet

Macrovipera razii · Razi’s Viper

Full care guide and sources

📋 At a glance

🏠 Enclosure

One adult: 180 × 90 × 75 cm as a practical starting enclosure, enlarged for the actual animal. Relative humidity 40–60%, with fresh water, local moisture and dry resting areas. Locked enclosure and room, a secure isolation compartment, protected servicing and separate quarantine for at least 90 days.

🪨 Substrate and furnishings

• Give the snake enough uninterrupted floor length to stretch fully. Secure ventilation mesh, doors and cable entries, checking gaps against the smallest animal present. Place cover in both thermal zones and fix stones against collapse. After quarantine, 5–8 cm of compactable soil mixed with washed sand, with a little leaf litter, can provide firm footing and local moisture. Keep most of the surface dry. Avoid sharp gravel, aromatic wood and inaccessible cavities; paper remains useful for sick animals.

💡 Lighting

• Provide 12–14 hours of visible light in the active season and darkness at night. Keep full shade available. No species-specific UVB optimum is established; if low-level UVB is used, measure exposure and review the arrangement with the veterinarian using the UV-Tool reference. Guard lamps and adjust seasonal day length gradually, in step with the approved winter plan.

🌡️ Temperature

Provisional active-season targets, not proven optima or safety limits. Outdoor climate averages are not enclosure settings; seasonal changes require the documented origin and veterinary review.

• Basking spot: 29-32 °C
• Warm zone: 22-27 °C
• Cool zone: 20-24 °C
• Night: 18-22 °C

💧 Humidity and water

• Air humidity: 40–60%.

• Measure relative humidity near the resting animal, using the table as a provisional band. Keep a slightly moist refuge alongside dry resting surfaces; avoid wetting the whole floor. Ventilation and local moisture are more useful than chasing a single percentage. Supply fresh water continuously in a stable bowl, serviced only after isolation. Persistent poor sheds require a hydration and health review, not forced soaking or peeling.

🪳 Feeding

The original field study directly recorded bird prey, including see-see partridge; do not present rodents as the only natural food. For established animals accepting commercially bred whole rodents or appropriate birds, modest thawed meals every 14–21 days are a provisional adult starting point, with smaller juvenile meals often every 7–10 days. Confirm the breeder’s actual diet, track body condition and avoid oversized rats or routine overfeeding. Whole-prey variety must remain nutritionally balanced.

☠️ Venom

Bite severity varies; a small wound or an apparently dry bite does not exclude delayed envenoming.

A large Macrovipera bite can cause severe envenoming. Comparative genus evidence includes progressive swelling, tissue injury, disturbed clotting, bleeding, shock and kidney injury. Direct razii clinical data are sparse; do not promise the same syndrome or antivenom response as M. lebetina. Arrange specialist advice for the documented species and origin before acquisition.

Call emergency services immediately, keep the person still, remove rings and tight items, and support the limb without compression. Do not cut, suck, apply ice or a tourniquet, or delay transport to capture the snake. Establish receiving-hospital and poison-centre arrangements before acquisition. Antivenom selection and administration belong to clinicians.

Full guide and sources

🩺 Health — warning signs

Persistent exposed resting or attempts to escape the warm zone warrant an immediate temperature check. Wheezing, bubbles or open-mouth breathing suggest respiratory disease; abnormal belly scales may indicate dermatitis. Repeated poor sheds, regurgitation, weight loss or abnormal faeces require a reptile veterinarian to distinguish dehydration, dietary problems, parasites and other illness. Do not deworm or restrain a venomous snake yourself; arrange secure professional transport.